The FDC2214 proximity and capacitive sensing design demonstrates how to use TI's capacitive sensing technology to sense and detect the presence of various objects. This design is a complete hardware and firmware solution. The firmware processes data from a proximity sensor and two capacitive touch buttons via the FDC2214 to determine whether an object is within the target sensing area. A dedicated colored LED lights up whenever the device detects an object in close proximity to the board or detects a button press. This design is powered by one AA battery.
Blockdiagram
| Devices | Class | introduce | Datasheet |
|---|---|---|---|
| CSD25310Q2 | Discrete semiconductor;The transistor | Download | |
| FDC2212 | The sensor | FDC2212 Noise-immune Capacitive Sensing Solution for Proximity Sensing | Download |
| FDC2214 | The sensor | FDC2214 Noise-immune Capacitive Sensing Solution for Proximity Sensing | Download |
| MSP430FR5969 | semiconductor;The embedded processor and controller | MSP430FR5969 MSP430FR5969 16 MHz Ultra-Low-Power Microcontroller featuring 64 KB FRAM, 2 KB SRAM, 40 IO | Download |
| TPS61029 | semiconductor;Power management | TPS61029 Adjustable, 1.8-A Switch, 96% Efficient Boost Converter with Down-Mode, QFN-10 | Download |
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